Pokemon Go Raids gameplay screenshots

POKEMON Go developer Niantic is adding co-operative Raids, as Gym battles get a Legendary overhaul in the summer update.

Following a new combination discovered by Trainers, it’s been revealed that up to 28 items can be earned from a single Gym visit.

One player has found that by having a Gold badge, control of the Gym and their 7-day streak active, they were able to get a big haul.

Reddit user reneritchie explains: “Got the gold badge in the last couple of days (there was no notification so I'm not sure when exactly), but either way, it was in time for my 7-day streak today, and it's a gym I'm on, so team control bonus folded in as well.”

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While it was still mostly Pokeballs, the added berries and revives will always come in handy when looking for a challenge.

Other players have confirmed that they have had similar success involving Gym spins, although details are still not completely known.

“My home gym badge is now gold and sometimes I get 3 white background items (more often 2) then 3 gold background items for the badge rank, then 2 red valor background items for having a defender in the gym and obviously team control,” One trainer commented.

“Not sure if you only get 1 team colored item if your team is holding with the player that spins not having a defender in at the time of spin.”

Pokemon Go fans are also hoping that tier 5 of the new Raids system will include Legendary Pocket Monsters.

It's still not known how this will work, although it seems likely that a global event will be used to launch the best Pokemon in the game.